Here are just some thoughts:
When Bob Jones chose Augusta as the location of his course it was a huge blow to his Atlanta friends who assumed Atlanta would be the location for Jones' beloved course. I am certain there was a lot of pressure to have an Atlanta club that could be enjoyed by his close Atlanta friends and be a source of pride for the still relatively young and up and coming city.
When Peachtree was founded in March of 1947 they had just a little over a hundred members and the present number is still under three hundred. The list of names was largely before my time so I can't speak to their golfing abilities but I can supply some quotes from the club history published in 1978.
"...the Club was conceived with a very simple purpose in mind. ...it's sole purpose has been a dedication to the enjoyment of the great game of golf and to friendship..."
"Peachtree was created to be a golf club and not primarily a social facility, although ample provisions were included for the sociability within its golfing environment."
I think maybe the difficulty between Mr. Jones and Mr. Roberts is that they held very different ideas of how a club should be run. Roberts was clearly an autocrat. Jones notoriously hated "rules". Again from the club history, "Peachtree is a club which has few written rules and regulations. In fact, there may be fewer rules at Peachtree than almost any other golf club in America. Bob Jones did not like "rules" since it was his feeling that posted rules are simply unnecessary among gentlemen and ladies."
The club history describes early members like Woodruff, Garlington and Jones' father as being avid golfers but i have no idea how good they were. The club does have a fairly established record of fine players from the 60's qnd 70's up through today--Jimmy Cleveland, Jimmy Gabrielson, Dan, Charles and Danny Yates, Fred Ridley, Frank Stephenson, Walter Driver, to current players like Jeff Knox, Carlton Forrester and Jack Larkin--all players with prominent state and national success. It is a "low key" club but I have always remembered that there were a lot of good players. The reputation of "old, rich guys only" is not really accurate.
I think Augusta credits Bob Jones with the idea for the changes to 16 in 1947 and R.T, Jones with the implementation of Jones' vision. Clearly Jones and Jones agreed on many principles and the club history is clear that both Jones' were "on the same page" re what they envisioned as a course that had the flexibility to test better players and be playable by the other 95% as well.
The club has engaged in a massive capital program and invested a lot in the course. Superintendent William Shirley has done a magnificent job and the zoysia tees and fairways, bermuda rough and bent greens are genuinely spectacular. It is a special place for golf and I am sure Jones' Atlanta "fans" are proud and delighted to have it in their back yard.